operation before the scandal broke. that happened after the shooting death of a u.s. border patrol agent in december 2010. the report said lower-level officials should have briefed holder on the situation earlier on. for more on the findings, we're joined by evan perez, who covers the justice department for the "wall street journal." evanwelce. remind us first what this s all about. >> well, this was operation conceid inhoenix, in the a.t.f. office in phoenix. and the plan was to basically go after big-gun traffickers. they wanted to follow guns and see where it led and see if they could get to some major figures in gun trafficking. it was in 2009/2010 and they allowed, essentially, agents allowed about 2,000 firearms to be trafficked to suspected smugglers, many of which were-- have turned up in months since in crime scenes in mexico and the united states. there was very little effort to interdict the weapons to stop them from going across the bordeand, of course, with the deh ofgentryan try and other deaths, we see what the consequences are. >> brown: so the key questions became-- of course, it became a political issue, who is responsible for this, how much were the white house and the attorney general's office involved? so what does the report tell us?